Relevant bibliographies by topics / Pressure Welding

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Pressure Welding'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 March 2023

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Journal articles on the topic "Pressure Welding"

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SUZUMURA, Akio, Yohei INAGAKI, Toshi-Taka IKESHOJI, and Yasuhiro UENO. "Braze Pressure Welding (BPW)-A New Method for High Quality Pressure Welding." JSME International Journal Series A 46, no. 3 (2003): 208–12. http://dx.doi.org/10.1299/jsmea.46.208.

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Zhao, Sheng Dun, Fan Xu, Ren Feng Zhao, and Bin Zhong. "Completely Inelastic Collision to Confirm Maximum Punch Pressure Force of Cold Pressure Welding." Advanced Materials Research 291-294 (July 2011): 890–95. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.890.

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The maximum punch pressure force (TMPPF) of cold welding pressure affects not only the performance of the welding bonding but also the amount of the area of welding bonding. If punch force is more bigger, it may be take place cracks, stress concentration and welding concave pits, which affect application of materials and increase incidence of faults. The process that punch pressure of cold welding pressure applied on sheet materials to attain welding bonding is simplified beam in cold pressure welding. Under normal circumstances it is an important method to TMPPF by the manner of experiment, but the method to attain TMPPF is limited. In the paper completely inelastic collision theory is applied to explain the process of cold welding pressure, the theory of completely inelastic collision offers principle theory to attain TMPPF. In this paper, two supposes are put forward, on the basis of two supposes the critical velocity is attained. At the same time, critical kinetic momentum or critical kinetic energy will be attained. On the basis of the law of conservation of energy, energy balance equation is attained, which will drop in calculating difficulty of the non-linear process of cold pressure welding and decrease calculated amount. In this paper on the basis of the process of collision all phases are analyzed. Indeed elastic-plastic deformation phase is completely inelastic collision phase, and from point of view of collision to calculate energy loss. At the same time, to suppose other plate is utter stiff can attain critical velocity, thus, to achieve the equation of TMPPF.
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RAMESH KUMAR, R., and J. M. BABU. "Tensile strength Characteristics on Dissimilar Metal Friction Welding of Ti-6Al-4V & SS304L." INCAS BULLETIN 12, no. 1 (March 1, 2020): 157–66. http://dx.doi.org/10.13111/2066-8201.2020.12.1.15.

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In this research, the method of friction welding joints in Titanium and Stainless Steel with aluminium interlayer coating is created. The friction welding process is a solid-state joining process of dissimilar or similar materials. This friction welding process needs high rotational speed and high forging pressure. Titanium and stainless steel materials melting temperatures are around 1600OC. Welding process which needed high-pressure, temperature and good velocity regions. Titanium and stainless steels are coated 300OC ranges to applied aluminium spray coating method with constant pressure. The source of the aluminium coating is strong titanium and stainless steel adhesive strength. In this experimental project, four different trials of titanium and stainless steel joints have been performed at different speeds and constant forging pressures. Trial 4 connections of titanium and stainless steel made of 2100OC temperature and forging pressure of 60 MPa, friction time of 5 sec and friction pressure of 70 MPa. Friction welding experiments were completed with the help of friction time, forging pressure, rotational speed and friction pressure. Tensile load stress results are calculated by the UTM machine and evaluated the results of design experts with ANOVA table and RSM.
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Chang, Xu, Jie Liu, Guang Wei Fan, and Ren Long Tao. "Study on Microstructure and Fracture Morphology of 2205 Duplex Stainless Steel Resistance Spot Welds." Materials Science Forum 804 (October 2014): 289–92. http://dx.doi.org/10.4028/www.scientific.net/msf.804.289.

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Fracture morphologies, microstructures and mechanical properties of the spot welded joints on 2205 duplex stainless steel (2205DSS) were studied by using three-phase inverter resistance welding machine with the welding currents of 6.4kA, 7.4kA, 9.5kA and 11.6kA, the welding pressures of 0.5MPa, 0.6MPa and 0.7MPa, and the welding time of 200ms. The results show that the macroscopic fracture fashion of 2205DSS spot welding joints are mainly button fracture and joint fracture, and the microstructures and mechanical properties of 2205DSS spot welding joints have the best performance with the welding current of 9.5kA, the welding time of 200ms and the welding pressure of 0.6MPa.
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Zhang, Jingquan, Ting Huang, Sergey Mironov, Dong Wang, Qingwei Zhang, Qiang Wu, Jiejie Xu, and Rongshi Xiao. "Laser pressure welding of copper." Optics & Laser Technology 134 (February 2021): 106645. http://dx.doi.org/10.1016/j.optlastec.2020.106645.

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Hodge., James Campbell. "THE WELDING OF PRESSURE VESSELS." Journal of the American Society for Naval Engineers 48, no. 4 (March 18, 2009): 498–522. http://dx.doi.org/10.1111/j.1559-3584.1936.tb03830.x.

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Zhang, W., N. Bay, and T. Wanheim. "Influence of hydrostatic Pressure in Cold-Pressure Welding." CIRP Annals 41, no. 1 (1992): 293–97. http://dx.doi.org/10.1016/s0007-8506(07)61207-4.

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Bulychev, Vsevolod, Rashit Latypov, Svetlana Golubina, Gyulnara Latypova, and Artem Rodin. "Classification of pressure welding methods depending on thermal deformation conditions." MATEC Web of Conferences 329 (2020): 03014. http://dx.doi.org/10.1051/matecconf/202032903014.

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In this study, a classification of welding methods is proposed, based on the peculiarities of metal gripping under various heat-deformation conditions for the implementation of welding processes. The theoretical basis of the developed classification is the hypothesis of the critical sizes of active centers. The main approaches to the classification of welding methods are considered, and four groups of pressure welding methods are proposed, depending on the mechanism of formation of stable centres of gripping: mechanical welding methods with low plastic deformation rate; mechanical methods of welding with a high plastic deformation rate; thermo-mechanical welding methods, in which, in addition to heating by deformation, additional sources of thermal energy are used to increase the temperature in the zone of joint formation; thermal pressure welding methods that envisage only a thermal activation channel.
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Zhang, Lei, Jin Zhou Zhang, and Xiao Ming Li. "Welding Stress Numerical Simulation and Analysis of High-Pressure Pipeline." Advanced Materials Research 912-914 (April 2014): 890–94. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.890.

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Welded stress has an important impact on quality and life of of high-pressure pipeline. Based on pipeline material performance, considered welding arc force and its mining action, selected double ellipsoidal heat source model, simulated welding process of of high-pressure pipeline, analysised welding temperature field and stress field, determined the distribution disciplines of welding stress, provides useful help on exploring the disciplines of pipeline welding.
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Volkov, S. S., S. A. Korolev, and D. S. Rozanov. "The Influence of Technological Parameters on Durability of Products from ABS Plastic at Ultrasonic Welding." Proceedings of Higher Educational Institutions. Маchine Building, no. 5 (710) (May 2019): 17–26. http://dx.doi.org/10.18698/0536-1044-2019-5-17-26.

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An ultrasonic welding method for round-shaped products made from ABS plastic is described in this paper. This method can eliminate roughness and waviness on the contact surface between the planimetric waveguide and the welded part, increase heat removal from the surface of the welded part in the subwaveguide zone and improve the efficiency of ultrasonic welding as well as the strength and quality of the welded joint. It is shown that a mushroom-shaped waveguide is the optimal choice for planimetric ultrasonic welding of ABS parts of the fan wheel type with regard to the uniformity of the oscillation amplitude distribution along the perimeter of the waveguide’s working end face. The optimal form of the waveguide’s working end face is defined that entails fixing the connecting parts relative to the waveguide’s axis along their diameter. It is established that at a certain combination of the ultrasonic welding modes for ABS plastic the rate of deformation at large welding pressures can turn out to be higher than at small pressures. This is caused by the competition of three factors: temperatures, static welding pressure and concentration of energy on the welded surfaces. It is determined that for welding ABS plastic the so-called soft modes of ultrasonic welding with small static welding pressure and oscillation amplitude of the waveguide’s end face should be used. In this case welding occurs only due to the distribution of microroughness, without dents from the waveguide on the surface of the welded material. Optimal welding parameters for ABS plastic are determined.
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Dissertations / Theses on the topic "Pressure Welding"

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Van, Zyl Carlo Angelo Antonio. "Analysis and modelling of the temperature distribution during the friction taper stud welding of 10CrMo910." Thesis, Nelson Mandela Metropolitan University, 2008. http://hdl.handle.net/10948/720.

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Heat generation during the FTSW process plays and important role in determining the characteristics of the weld. In order to obtain temperature fields, a transient temperature heat analysis is required. An area is the maximum temperatures reached within the base material during the FTSW process. These temperatures will be measured during experimentation, and compared to the welding simulation done using FEA. From the literature search it appeared that no heat transfer analysis had been done using finite element methods.
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Agers, Bryan Michael. "An investigation into the mechanism of pressure welding." Thesis, Swansea University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.570649.

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Göktuğ, Gökhan. "On the effect of environmental pressure on gas tungsten arc welding process." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/39620.

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King, Benjamin. "Welding and post weld heat treatment of 2.25%Cr-1%Mo steel." Access electronically, 2005. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060404.095844/index.html.

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Prymak, David John. "A New Method of Measuring Flow Stress for Improved Modeling of Friction Stir Welding." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9081.

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Deficiencies in friction stir welding (FSW) numerical modelling are identified. Applicability of flow stress data derived from hot compression, hot torsion, and split Hopkinson bar testing methods is assessed. A new method of measuring flow stresses in the stir zone of a friction stir welding tool is developed. This test utilizes a non-consumable flat-faced cylindrical tool of different geometries that induces a vertical and rotational load on the material of interest. A constant vertical load and rpm value is used for each test yielding the resulting motor torque and temperature generation to define the material response. Experimental samples are cross-sectioned, polished, and etched to reveal the material flow behavior below the tool. A viscosity-based model is used to quantify the shear stress and rim shear rate present in the shear layer below the tool. This test is referred to as the high-pressure shear (HPS) experiment. A parameter window is developed for two alloys of interest, AA6061-T6 and AA2219-T87 and results are reported. The HPS experiments yields flow stress estimates that are pressure and strain rate dependent. Different tool geometries are explored to understand the impact of the "dead zone"at the center axis of the tool. When compared to hot compression and hot torsion the HPS flow stress datasets trend 20-86 % lower across the two materials tested.
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Viehrig, Hans-Werner, Eberhard Altstadt, Mario Houska, Gudrun Mueller, Andreas Ulbricht, Joerg Konheiser, and Matti Valo. "Investigation of decommissioned reactor pressure vessels of the nuclear power plant Greifswald." Helmholtz-Zentrum Dresden - Rossendorf, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-235681.

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The investigation of reactor pressure vessel (RPV) material from the decommissioned Greifswald nuclear power plant representing the first generation of Russian-type WWER-440/V-230 reactors offers the opportunity to evaluate the real toughness response. The Greifswald RPVs of 4 units represent different material conditions as follows: • Irradiated (Unit 4), • irradiated and recovery annealed (Units 2 and 3), and • irradiated, recovery annealed and re-irradiated (Unit1). The recovery annealing of the RPV was performed at a temperature of 475° for about 152 hours and included a region covering ±0.70 m above and below the core beltline welding seam. Material samples of a diameter of 119 mm called trepans were extracted from the RPV walls. The research program is focused on the characterisation of the RPV steels (base and weld metal) across the thickness of the RPV wall. This report presents test results measured on the trepans from the beltline welding seam No. SN0.1.4. and forged base metal ring No. 0.3.1. of the Units 1 2 and 4 RPVs. The key part of the testing is focussed on the determination of the reference temperature T0 of the Master Curve (MC) approach following the ASTM standard E1921 to determine the facture toughness, and how it degrades under neutron irradiation and is recovered by thermal annealing. Other than that the mentioned test results include Charpy-V and tensile test results. Following results have been determined: • The mitigation of the neutron embrittlement of the weld and base metal by recovery annealing could be confirmed. • KJc values of the weld metals generally followed the course of the MC though with a large scatter. • There was a large variation in the T0 values evaluated across the thickness of the multilayered welding seams. • The T0 measured on T-S oriented SE(B) specimens from different thickness locations of the welding seams strongly depended on the intrinsic structure along the crack front. • The reference temperature RT0 determined according to the “Unified Procedure for Lifetime Assessment of Components and Piping in WWER NPPs - VERLIFE” and the fracture toughness lower bound curve based thereon are applicable on the investigated weld metals. • A strong scatter of the fracture toughness KJc values of the recovery annealed and re-irradiated and the irradiated base metal of Unit 1 and 4, respectively is observed with clearly more than 2% of the values below the MC for 2% fracture probability. The application of the multimodal MC-based approach was more suitable and described the temperature dependence of the KJc values in a satisfactory manner. • It was demonstrated that T0 evaluated according to the SINTAP MC extension represented the brittle fraction of the data sets and is therefore suitable for the nonhomogeneous base metal. • The efficiency of the large-scale thermal annealing of the Greifswald WWER 440/V230 Unit 1 and 2 RPVs could be confirmed.
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Bergstedt, Edwin. "A Study in How Welding Parameters Affect the Porosity in Laser Welded High Pressure Die Cast AM50 Magnesium Alloy." Thesis, KTH, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-291119.

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There are a need for reducing the weight of vehicles, one solution is to implement cast lightweight materials such as the high pressure die cast AM50 magnesium alloy. The weldability of this cast alloy is poor and to implement the use of the alloy commercially a welding process is needed that limits the porosity of the weld. The aim of this thesis is to study the effect of the welding parameters on the porosity in the weld, for three laser welding methods. The welding methods examined are single spot and twin spot laser using either a beam splitter or separate optics. The microstructure of the base material are also examined in order to evaluate relations between the components of the microstructure and the porosity in the weld. It was concluded that the hydrogen in the base material was the main reason for the observed porosity in the weld and that the material contains high pressure gas. The welding parameters did not influence the porosity for the single beam laser process, however, for the dual beam processes the welding parameters could affect the amount of pores. It was found that a double weld reduced the amount of pores and that the size and distribution of the secondary phase particles would benefit from the treatment. The cleaning of the samples prior to welding increased the porosity, however, non-cleaned samples contained more oxide inclusions. The results indicate that a twin beam process could reduce the porosity in the weld of the AM50 alloy.
Det finns ett behov av att reducera vikten på fordon, en lösning är att implementera gjutna lätta material såsom formsprutad AM50-magnesiumlegering. Svetsbarheten hos denna gjutna legering är dålig och för att kommersiellt kunna använda legeringen krävs en svetsprocess som begränsar svetsens porositet. Syftet med detta examensarbete är att studera svetsparametrarnas effekt på svetsens porositet för tre lasersvetsmetoder. De svetsmetoder som undersöks är enkelpunkts och dubbelpunktslaser där antingen en stråldelare eller separat optik använts. Basmaterialets mikrostruktur undersöks också för att utvärdera sambandet mellan mikrostrukturen och porositeten i svetsen. Man drog slutsatsen att väte i basmaterialet var huvudorsaken till den observerade porositeten i svetsen och att materialet innehåller gas under högt tryck. De undersökta svetsparametrarna påverkade inte porositeten för processen med en laserstråle, men för dubbelstråleprocesserna kan svetsparametrarna påverka mängden porer. Det visade sig att en svets utförd med två strålar minskade mängden porer och att storleken och fördelningen av sekundärfaspartiklarna gynnas av behandlingen. Prover som rengjordes före svetsning hade ökad porositet, men icke-rengjorda prover innehöll mer oxidinneslutningar. Resultaten indikerar att en dubbelstråleprocess kan minska porositeten då AM50-legeringen lasersvetsas.
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Kocák, Tibor. "Predpříprava a svařování tlakových hliníkových potrubí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318704.

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The project is an analysis of technology production of pressure pipes made of aluminum alloys. The basis is a literary study of TIG technology, aluminum heat-tretable and non-heat-treatable materials. The flange-material is EN AW 5083 and the pipe is made of EN AW 6005A. The design of the welding is compromise between the preparation, the cleaning of the welding edges and the weld metal backing strip. Weld was made in real production. Examined impacts are evaluated on the basis of destructive and non-destructive welding test methods. After heating process of weldment material exhibits better mechanical properties. Using the economical and technological evaluation were selected sutiable proces parameters. The result is a suitable weld of the pressure vessel. Further optimization is possible through automation and robotics.
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Yi, Jihaeng. "Optical Sensors for High-Temperature Pressure Measurement and Real-Time Particle Detection." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/77229.

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In this thesis, we report the development of two types of optical sensors, one for high temperature pressure measurements and the other for real-time particle detection. With a high melting temperature (over 2000°C), low optical loss, and excellent corrosion resistance, sapphire (α-Al₂O₃) is ideal for high temperature sensing applications. Fabry-Perot (FP) cavity with optical interrogation of pressure response. The prototype is based on an extrinsic FP interferometer design and is constructed by combining reactive ion etching (RIE) with direct wafer bonding. Long-term testing proves that the adhesive-free wafer bond is sufficient to create a sealed Fabry-Perot cavity as a pressure transducer. Pressure measurement over a range of 6 to 200 psi has been demonstrated at room temperature using white-light interferometry. For the other sensor, the goal is to detect the presence of micro- and nanoparticles in real time. The sensor is based on a silica fiber taper, and we aim to detect particle presence by measuring optical scattering and absorption induced by particles attached to the taper surface. To establish the relationship between particle density and optical transmission loss, we first consider a model where Au nanospheres are self-assembled on taper surface through electrostatic interaction. An analytical model is established to describe the adsorption of gold nanospheres onto cylindrical and spherical silica surfaces from quiescent aqueous particle suspensions. The curved surfaces of the fiber taper and microspheres are coated with nm-thick layer of a polycation, enabling irreversible adsorption of the negatively charged spheres. Our results fit well with theory, which predicts that the rates of particle adsorption will depend strongly on the surface geometry. In particular, adsorption is significantly faster on curved than on planar surfaces at times long enough that the particle diffusion length is large compared to the surface curvature. This is of particular importance for plasmonic sensors and other devices where particles are deposited from a suspension onto surfaces which may have non-trivial geometries. We have established a theoretical model that can describe optical loss generated by particles on taper surface. This theory is validated by measuring, in real time, optical loss during the self-assembly of gold nanoparticles. We find that the measured optical loss can be quantitatively explained by the presence of multiple guided modes within the fiber taper region. Based on this work, we incorporate a fiber taper into a cascade impactor and show that welding aerosols attached to the fiber taper surface can induce measurable transmission loss during the welding process.
Ph. D.
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森, 敏彦, Toshihiko MORI, 健治 広田, Kenji HIROTA, 進幸 千田, Shinkoh SENDA, 貴司 足立, and Takashi ADACHI. "PCR加工による異種材質円管の重ね圧接." 日本機械学会, 2000. http://hdl.handle.net/2237/9034.

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Books on the topic "Pressure Welding"

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Chen, Zhan, and Daniela Lohwasser. Friction stir welding: From basics to applications. Boca Raton: CRC Press, 2010.

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Karakozov, Ė S. Svarka metallov davleniem. Moskva: "Mashinostroenie", 1986.

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Mishra, Rajiv S. Friction stir welding and processing VI: Proceedings of a symposium sponsored by the Shaping and Forming Committee of the Materials Processing & Manufacturing Division of TMS (The Minerals, Metals & Materials Society) : held during the TMS 2011 Annual Meeting & Exhibition, San Diego, California, USA, February 27-March 3, 2011. Hoboken, N.J: John Wiley & Sons, 2011.

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Mishra, Rajiv S., T. J. Lienert, and Murray W. Mahoney. Friction stir welding and processing V: Proceedings of symposia sponsored by the Shaping and Forming Committee of the Materials Processing & Manufacturing Division of TMS (The Minerals, Metals & Materials Society) : held during TMS Annual Meeting & Exhibition, San Francisco, California, USA, February 15-19, 2009. Warrendale , Pa: The Minerals, Metals & Materials Society (TMS), 2009.

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Sluzalec, Andrzej. Theory of thermomechanical processes in welding. Dordrecht: Springer, 2005.

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ASME Pressure and Boiler Vessel Committee Subcommittee on Welding. Qualification standard for welding and brazing procedures, welders, brazers, and welding and brazing operators. 2nd ed. New York, NY: American Society of Mechanical Engineers, 2010.

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Vsesoi͡uznai͡a nauchno-tekhnicheskai͡a konferent͡sii͡a "Dostizhenii͡a i perspektivy razvitii͡a diffuzionnoĭ svarki" (13th 1991 Moscow, R.S.F.S.R.). Trinadt͡satai͡a Vsesoi͡uznai͡a nauchno-tekhnicheskai͡a konferent͡sii͡a "Dostizhenii͡a i perspektivy razvitii͡a diffuzionnoĭ svarki": 24-26 i͡anvari͡a 1991 goda, tezisy dokladov. Moskva: [s.n.], 1990.

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A, Simonen F., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering Technology., and Pacific Northwest National Laboratory, eds. RR-PRODIGAL: A model for estimating the probabilities of defects in reactor pressure vessel welds. Washington, DC: Division of Engineering Technology, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1998.

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A, Simonen F., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering Technology., and Pacific Northwest National Laboratory (U.S.), eds. RR-PRODIGAL: A model for estimating the probabilities of defects in reactor pressure vessel welds. Washington, DC: Division of Engineering Technology, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1998.

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J, Spence, Banks W. M, and Nash D. H, eds. Conference on pressure equipment technology, theory and practice: 1-2 May 2003, the University of Strathcylde, Glasgow, UK. London: Professional Engineering Pub., 2003.

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Book chapters on the topic "Pressure Welding"

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Karkhin, Victor A. "Temperature Fields in Welding with Pressure." In Thermal Processes in Welding, 305–22. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5965-1_6.

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Ichimura, Takashi, Yusuke Ito, Makoto Miyazaki, and Akira Hatta. "Deformation Behavior in Magnetic Pressure Parallel Seam Welding." In Forming the Future, 1305–14. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75381-8_108.

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Kaushik, Krishnan, Turvasu Amin, and Meeta Gandhi. "A Case Study to Control Welding Defects in Pressure Vessels." In Proceedings of International Conference on Intelligent Manufacturing and Automation, 137–45. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-7971-2_14.

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Serizawa, Hisashi, Isao Shibahara, Sherif Rashed, Hidekazu Murakawa, Mitsuhiro Watanabe, and Shinji Kumai. "Basic Study of Joint Interface Formation in Magnetic Pressure Seam Welding." In Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials III, 121–30. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470584392.ch15.

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Singh, Pankaj Kumar, and Ravindra Pratap Singh. "In-Pressure Magnetically Induced Arc Butt Welding of Alloy Steel Tubes." In Lecture Notes in Mechanical Engineering, 1071–82. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2188-9_98.

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Suzumura, Akio. "Braze Pressure Welding (BPW) - A New Method for Joining Steel Pipes -." In THERMEC 2006, 3955–60. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-428-6.3955.

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Jiang, Jun, Cheng Ye, Zhongzheng Zhang, and Yongliang Yu. "Acoustic Emission Testing of a Friction Stir Welding Aluminum Alloy Pressure Vessel." In Springer Proceedings in Physics, 341–51. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12111-2_32.

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Serizawa, Hisashi, Isao Shibahara, Sherif Rashed, Hidekazu Murakawa, and Shinji Kumai. "Effect of Various Factors on Interface Formation in Magnetic Pressure Seam Welding." In Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials IV, 175–82. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470944066.ch17.

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Guan, Ruifeng, Hong Chen, Bin Zhang, and Wenbin Zhong. "An Improved Welding Process of Instrumentation Tubes on Nuclear Reactor Pressure Vessel." In Proceedings of The 20th Pacific Basin Nuclear Conference, 317–26. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2317-0_31.

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Tordella, D., and D. Cruciani. "Influence of the External Pressure on Laser-Material Interaction During the Welding Process." In Gas Flow and Chemical Lasers, 457–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71859-5_67.

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Conference papers on the topic "Pressure Welding"

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Tahara, Takayasu, Takahisa Hoshika, Eiichi Yamamoto, Takushi Murakami, Keisuke Shiga, Yukio Hirai, Yasushi Ogayu, and Fumiyoshi Minami. "Development of JWES Standard WES7700 for Repair Welding of Pressure Equipment." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97254.

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The Japan Welding Engineering Society (JWES) published the guideline for repair welding of pressure equipment, CP-0902 in 2009. Considering the regal approval of each repair welding procedure for pressure equipment, JWES WES7700 has been also published in 2012. This paper summarizes the contents of WES7700 along with a verification of repair welding procedures such as minimum required grind out thickness for thermal removal of flaws, minimum required throat thickness of fillet welds for patched plates by experimental pressure tests and FEM analysis and some comparison of the requirements of several stamdards for repair weldings.
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Mullins, Jonathan, and Jens Gunnars. "Welding Simulation: Relationship Between Welding Geometry and Determination of Hardening Model." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78599.

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It is generally acknowledged that the material hardening model exerts a considerable effect on predicted weld residual stress fields. For this reason the choice of hardening model has attracted interest among analysts, particularly during recent validation studies. Nevertheless there is still lack of evidence for a hardening model which is generally applicable for all welding geometries. In this work we examine the predictions of nonlinear kinematic, isotropic and mixed hardening models for two different geometries: a single bead on plate weld, and a multi-bead girth weld. Hardening parameters are based on the same openly available mechanical test data. Deformation histories for the two welding geometries are presented. Predicted residual stress profiles are compared with experimental measurements. It is noted that nonlinear kinematic hardening results in good predictions for the single bead welding simulation where hardening in the weld and HAZ is dominated by a single heating and cooling cycle. Isotropic hardening results in good predictions for the 42 bead girth weld, where hardening in the weld and HAZ is heavily influenced by several heating and cooling cycles from the addition of several weld beads and where some relaxation of residual stress is possible. Mixed hardening can result in good predictions for both welding geometries. Additional strategies for development of material models based on isotropic and kinematic hardening and relevant test data are discussed with particular attention paid to intermediate weld geometries.
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Orekhov, D. A. "High Pressure Pipe Welding Technology." In SCIENCE OF RUSSIA: TARGETS AND GOALS. LJournal, 2019. http://dx.doi.org/10.18411/sr-10-06-2019-18.

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Ma, Linwei, Xiaotao Zheng, Wei Wang, Wei Lin, Jianmin Xu, and Jiuyang Yu. "A Novel Heat Input Equation for Analysis Welding Thermal Distribution and Welding Residual Stress." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93362.

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Abstract In the numerical simulation of welding residual stress (WRS), the thermal fields distribution of the weld beads during welding process is the basic data to calculate the residual stress due to thermal expansion and extraction. Different welding heat input control method had been proposed and used in the WRS finite element method (FEM) analysis, such as input based on theory, input controlled by temperature monitoring point and so on. Some disadvantages like less calculating efficiency, unexpected temperature variation have been found in these methods. Based on the study of the FEM result of temperature distribution through the weld butter field by using constant unit heat input, the heat transfer activities of each weld bead were researched. And a novel heat input fitted equation was proposed to describe the suitable heat input data for each weld bead of the welding process. More reliable and uniform melting temperature of weld beads with different location could be achieved. And the welding residual stresses from different welding thermal field of theory method, temperature monitoring point method, and novel heat input equation method are compared with the measured WRS results. The results show that the WRS achieved from the novel heat input equations is close to the measured result and has more computational efficiency. The uncertain WRS data used for probability safety assessment were also proposed based on the FEM results with the novel heat input equation method.
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Dutilleul, Thomas, Robert Widdison, John Crossley, William Kyffin, Marc Albert, and David Gandy. "Slope Out Welding Development for Thick Section Electron Beam Welding for Pressure Vessel Applications." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-85478.

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Abstract As part of a Department of Energy (DOE) funded programme assessing advanced manufacturing techniques for SMR applications, the Nuclear AMRC and EPRI have been developing Electron Beam Welding (EBW) parameters and procedures based upon SA508 Grade 3 Class 1 base material. For linear EB welds, the start and stop regions can be managed by using sacrificial run on/off blocks. However, for circumferential welds, such as joining shell to flange components, the use of sacrificial material is not possible. As such an effective method of closing the keyhole must be developed to ensure that weld defects are not entrained. This process is termed ‘slope out’ welding. This paper presents results from the steady state welding in the 80–90 mm material thickness range, showing that weld properties meet specification requirements. Subsequently the paper describes the steps in developing an effective slope out welding procedure for circumferential welds. Weld quality was assured by Phased Array Ultrasonic Testing (PAUT) in conjunction with weld sectioning. All welds were assessed against ASME V requirements. The results presented in this study clearly indicate that defect free and repeatable electron beam welds, including the slope out region, can be produced on thick section pressure vessel steel.
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Gallee, Sébastien, Rémi Lacroix, Vincent Robin, Florence Gommez, and Erwan Jourden. "Hybrid Welding vs Conventional Welding: A Solution to Residual Stress and Distortion Mitigation?" In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65793.

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The present paper deals with the hybrid laser/MIG welding process, which allows to assembly high thickness steel sheets. The laser heat source added to the MIG torch improves the process productivity while respecting quality standard. The multi-pass welding simulation of a plate is presented in this paper and numerical results are compared to experimental measurements (temperature and stresses).
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Hudlow, Stephanie L. "Welding Plutonium Storage Containers." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2778.

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The outer can welder (OCW) in the FB-Line Facility at the Savannah River Site (SRS) is a Gas Tungsten Arc Weld (GTAW) system used to create outer canisters compliant with the Department of Energy 3013 Standard, DOE-STD-3013-2000, Stabilization, Packaging, and Storage of Plutonium-Bearing Materials. The key welding parameters controlled and monitored on the outer can welder Data Acquisition System (DAS) are weld amperage, weld voltage, and weld rotational speed. Inner 3013 canisters from the Bagless Transfer System that contain plutonium metal or plutonium oxide are placed inside an outer 3013 canister. The canister is back-filled with helium and welded using the outer can welder. The completed weld is screened to determine if it is satisfactory by reviewing the OCW DAS key welding parameters, performing a helium leak check, performing a visual examination by a qualified weld inspector, and performing digital radiography of the completed weld. Canisters with unsatisfactory welds are cut open and repackaged. Canisters with satisfactory welds are deemed compliant with the 3013 standard for long-term storage.
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Mahgoub, Ahmed, Neçar Merah, and Abdelaziz Bazoune. "Effect of Welding Conditions on Sheets’ Interface Properties in Friction Stir Spot Welding of Copper." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93635.

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Abstract Friction Stir Spot Welding (FSSW) is a solid-state joining technique widely applied to high conductive metals. In this paper, the effects of FSSW parameters, namely, rotational speed (N), plunging rate (V) and dwell time (DT) on the joint fracture mode and fractured surface morphology were investigated using scanning electron microscopy (SEM). The effect of the abovementioned welding parameters on the microhardness profile along the sheets’ interface was also investigated to gain insight into the strength of the joint and the width of the bonding ligament. Two conditions were considered for each parameter 1200 rpm and 900 rpm for N, 60 mm/min and 20 mm/min for V, 4 and 2 seconds for DT. The welding condition 1200 rpm rotational speed, 20 mm/min plunging rate and 2 seconds dwell time showed a wider bonding ligament, relatively higher elongation, higher tensile failure load, and greater microhardness on the sheets’ interface. Dimple surface morphology (DSM) with regular dimples along the stir zone was also observed at the abovementioned set of process parameters.
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Matsui, Yamato, Masahiko Otsuka, and Shigeru Itoh. "Explosive Welding of Metal Sheets." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71354.

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In this work explosive line and spot welding were used for the bonding of light-weight metal sheets. Materials involved are aluminum alloys 5052-O, 6061-T6, and 7075-T6, a magnesium alloy AZ31B-O and a commercially pure titanium (TP270C). Plates of similar and dissimilar metal combinations are explosion welded over a small overlapping area. The strength of the welds was measured using shear strength tests and the metal interface was analyzed using optical microscopy. The shear strength of the welds have been tested and appeared to high shearing strength. Explosive line and spot welding show a high strength to explosive mass ratio, making it a good candidate to be scaled up and used in commercial applications.
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Chen, Jian, Jonathan Tatman, Zongyao Chen, Zhili Feng, and Greg Frederick. "Proactive In-Situ Welding Stress Control for Laser Repair Welding of Irradiated Austenitic Materials." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65202.

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Substantial research has been performed in recent years to determine the effects and feasibility of welding on highly irradiated austenitic materials. This research has been driven by the need to preemptively develop welding techniques capable of repairing highly irradiated light water reactor (LWR) components susceptible to detrimental corrosion and cracking. However, the materials used to fabricate internal LWR components become increasingly difficult to weld with in-service age due to irradiation-induced generation of helium in the material matrix over time. This paper introduces a patent-pending technology that proactively manages the stresses during laser repair welding of highly irradiated reactor internals to avoid the occurrence of intergranular helium-induced cracking. The technology development relied on numerical simulations that made it possible to refine and optimize the innovative welding concept and to identify specific process conditions achieving significant reduction of tensile stress (or even formation of compressive stress) near the weld pool in the heat-affected zone on cooling. The candidate welding process conditions identified by the numerical simulations were experimentally tested on stainless steel plates (Type 304L) with a laser welding system purposely designed and engineered to incorporate the proactive stress management concept. In-situ temperature and strain measurement technique based on digital image correlation were applied to validate the numerical simulations.
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Reports on the topic "Pressure Welding"

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Ren, Weiju, and Totemeier Terry. Assessment of Negligible Creep, Off-Normal Welding and Heat Treatment of Gr91 Steel for Nuclear Reactor Pressure Vessel Application. Office of Scientific and Technical Information (OSTI), October 2006. http://dx.doi.org/10.2172/1093013.

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High Pressure Electron Gun for Electron Beam Welding and Additive Manufacturing. Office of Scientific and Technical Information (OSTI), January 2019. http://dx.doi.org/10.2172/1826572.

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